B.08 Drawings Amendment 0001.pdf

TYPICAL FEEDER CREEK SECTION

STA. 0+00-19+16, 100+00-104+93, AND 110+62-113+07

N.T.S.

5' 5'

10'

ELEV. VARIES (0.0 TO 0.5 FT. MLLW)

EXCAVATION

REQUIRED EXCAVATION

SECTION

EXISTING GROUND

ELEVATION VARIES

TYPICAL FEEDER CREEK SECTION

WITH LIMITED FOOTPRINT

106+97-108+25

N.T.S.

5' 5'

10'

ELEV. VARIES (0.18 TO 0.23 FT. MLLW)

EXCAVATION

REQUIRED EXCAVATION

SECTION

EXISTING GROUND

ELEVATION VARIES

GENERAL MARSH RESTORATION EXCAVATION DETAIL

N.T.S.

ELEV. VARIES (7.6 +/-0.5 FT. MLLW)

REQUIRED EXCAVATION

EXISTING GROUND

ELEVATION VARIES

TIE TO EXISTING

MAX. TOLERANCE

MIN. TOLERANCE

TYPICAL FEEDER CREEK SECTION

TRANSITION TO/FROM LIMITED FOOTPRINT

STA. 104+93-106+97 AND 108+25-110+62

N.T.S.

5' 5'

10'

ELEV. VARIES

(0.09 TO 0.18 FT. MLLW, 0.23 TO 0.31 FT. MLLW)

X

EXCAVATION

REQUIRED EXCAVATION

SECTION

X

EXISTING GROUND

ELEVATION VARIES

SIDE SLOPE VARIES

FROM 3:1 TO 5:1

SIDE SLOPE VARIES

FROM 3:1 TO 5:1

ELEV. VARIES (7.6 +/-0.5 FT. MLLW)

ELEV. VARIES (7.6 +/-0.5 FT. MLLW)

CN301

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K6ENHETW 5/18/2021 8:29:15 AM C:\USERS\K6ENHETW\DESKTOP\TELEWORK\CWK0609\04_GEOTECH\CAD\PLAN SHEETS\Z0RCE-GENERAL, NOTES.DWG

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CERTIFICATIONS:

PRIMARY PERMITTEE/OWNER:

THE DEPARTMENT OF THE ARMY

USACE PLANNING BRANCH

C/O STEVE FOX

100 W. OGLETHORPE AVE.

SAVANNAH, GA 31401

(912) 652-6210

STEPHEN.M.FOX@USACE.ARMY.MIL

24 HOUR CONTACT INFORMATION:

STEVE FOX

100 W. OGLETHORPE AVE.

SAVANNAH, GA 31401

STEPHEN.M.FOX@USACE.ARMY.MIL

(912) 652-6210

DESIGN PROFESSIONAL:

PROJECT ENGINEER

EMILY WORTMAN, P.E.

USACE, SAVANNAH DISTRICT

(912) 324-0133

THE DESIGN PROFESSIONAL WHO PREPARED THE E.S. & P.C. PLAN IS TO INSPECT THE

INSTALLATION OF THE INITIAL SEDIMENT STORAGE REQUIREMENTS AND PERIMETER

CONTROL BMPS WITHIN 7 DAYS AFTER INSTALLATION. THE DESIGN PROFESSIONAL IS TO

REPORT THE RESULTS OF THE INSPECTION TO THE PRIMARY PERMITTEE WITHIN 7 DAYS,

AND THE PERMITTEE MUST CORRECT ALL DEFICIENCIES WITHIN 2 BUSINESS DAYS OF

RECEIPT OF THE INSPECTION REPORT.

TO BE UPDATED BY SUCCESSFUL BIDDER WITH CONCURRENCE BY THE CONTRACTING

OFFICER AT LEAST 14 DAYS PRIOR TO THE COMMENCEMENT OF CONSTRUCTION

ACTIVITIES I.A.W. PART II, A.1. OF GENERAL PERMIT NO. GAR100001

POINT OF CONTACT INFORMATION:

PROJECT DESCRIPTION INCLUDES THE RESTORATION OF APPROXIMATELY 28 ACRES OF BRACKISH MARSH WITH

THE CONSTRUCTION OF MULTIPLE FEEDER CREEKS.

IMPERVIOUS AREAS HAVE BEEN INCLUDED IN THE PRE AND POST CONSTRUCTION DRAINAGE PLANS SHOWN IN

THESE DRAWINGS. TOTAL PROJECT LIMITS = 38.4 ACRES. PROJECT DISTURBED ACREAGE = 38.4 ACRES.

TOTAL CUT VOLUME FOR PERMITTING PURPOSES DUE TO PROPOSED GRADE IS APPROXIMATELY 450,000

CY.THESE VALUES ARE FOR PERMITTING PURPOSES ONLY.

TOPOGRAPHIC SURVEY AND 1' CONTOURS WITHIN THE CONSTRUCTION LIMITS OF THE PROJECT WAS OBTAINED

BY THE U.S. ARMY CORPS OF ENGINEERS, SAVANNAH DISTRICT.

ALL DEBRIS WILL BE HAULED OFF SITE TO A STATE APPROVED LANDFILL OR BURNED ONSITE..

THIS PROPERTY LIES WITHIN FEMA FIRM MAP 13051C0045G DATED 08/16/2018

THE ESCAPE OF SEDIMENT FROM THE SITE SHALL BE PREVENTED BY THE INSTALLATION OF EROSION AND

SEDIMENT CONTROL MEASURES AND PRACTICES PRIOR TO LAND DISTURBING ACTIVITIES.

THERE ESA WETLAND BOUNDARIES ARE DELINEATED ON THE SITE PLANS CE101-CE102.

COASTAL MARSHLAND ENCROACHMENT BUFFER VARIANCE IS REQUIRED FOR THIS PROJECT ALONG THE MIDDLE

AND SAVANNAH RIVER.

NON-EXEMPT ACTIVITIES SHALL NOT BE CONDUCTED WITHIN 25 OR 50-FOOT UNDISTURBED STREAM BUFFERS AS

MEASURED FORM THE POINT OF WRESTED VEGETATION OR WITHIN 25-FEET OF THE COASTAL MARSHLAND

BUFFER AS MEASURED FROM THE JURISDICTIONAL DETERMINATION LINE WITHOUT FIRST ACQUIRING THE

NECESSARY VARIANCES AND PERMITS.

ESTIMATE OF CURVE NUMBER OF THE SITE PRIOR TO AND AFTER CONSTRUCTION ACTIVITIES ARE COMPLETED:

SITE - PRE: COMPOSITE CN 77

SITE - POST: COMPOSITE CN 74

PROJECT INFORMATION & DATA:

AMENDMENTS/REVISIONS TO THE ES&PC PLAN WHICH HAVE A SIGNIFICANT EFFECT ON

BMPS WITH A HYDRAULIC COMPONENT MUST BE CERTIFIED BY THE DESIGN

PROFESSIONAL.

THE ESCAPE OF SEDIMENT FROM THE SITE SHALL BE PREVENTED BY THE INSTALLATION

OF EROSION AND SEDIMENT CONTROL MEASURES AND PRACTICES PRIOR TO LAND

DISTURBING ACTIVITIES.

EROSION CONTROL MEASURES WILL BE MAINTAINED AT ALL TIMES. IF FULL

IMPLEMENTATION OF THE APPROVED PLAN DOES NOT PROVIDE FOR EFFECTIVE EROSION

CONTROL, ADDITIONAL EROSION AND SEDIMENT CONTROL MEASURES SHALL BE

IMPLEMENTED TO CONTROL OR TREAT THE SEDIMENT SOURCE.

ANY DISTURBED AREA LEFT EXPOSED FOR A PERIOD GREATER THAN 14 DAYS SHALL BE

STABILIZED WITH MULCH OR TEMPORARY SEEDING.

ES&PC PLAN GENERAL NOTES:

THE EROSION CONTROL PLAN IS DESIGNED UTILIZING BMPs IN ACCORDANCE WITH GSWCC

REQUIREMENTS AND IS INTENDED TO BE SEQUENCED AS FOLLOWS:

INITIAL PHASE

· INSTALL PERIMETER CONTROL BMPs (SILT FENCE, CONSTRUCTION ENTRANCE/EXITS)

· INSTALL TEMPORARY DIVERSION SWALES

· CLEARING AND GRUBBING

CONSTRUCTION PHASE

· MAINTAIN PERIMETER CONTROL BMPs.

· CONTINUE GRADING.

· MAINTAIN CONSTRUCTION ENTRANCE/EXITS AS INDICATED ON PLANS.

· INSTALL TEMPORARY/PERMANENT GRASSING OR COVER DISTURBED AREAS AS

NEEDED.

· ADJUST DIVERSIONS AS NEEDED TO MAINTAIN CONVEYANCE OF SEDIMENT LADEN

STORMWATER TO SILT FENCE AND DIVERSION SWALES.

STABILIZATION PHASE

· ALL BMPS ARE TO BE MAINTAINED AND KEPT EFFECTIVE UNTIL ENTIRE CONTRIBUTING

BASIN IS STABILIZED.

· BRING SITE TO GRADE.

· INSTALL PERMANENT GRASS SEED.

· CONNECT FEEDER CREEKS TO SAVANNAH AND MIDDLE RIVER.

· BMPS TO BE REMOVED WHEN SITE IS STABILIZED PER GSWCC REQUIREMENTS.

DESCRIPTION OF BMPS & SEQUENCE OF WORK:

THIS SCHEDULE IS TO BE USED FOR PERMITTING PURPOSES ONLY. REFER

TO APPROVED PROJECT SCHEDULE FOR EXACT CONSTRUCTION SEQUENCING.

GRADING AND DRAINAGE BMPs

FEEDER CREEK GRADING

CONNECT FEEDER CREEKS TO RIVER

FINAL STABILIZATION

FINE GRADING

DESCRIPTION

INITIAL PHASE CONTROLS

CLEARING, GRUBBING, ROUGH GRADING

MAINT. OF EROSION CONTROL BMPs

TEMPORARY STABILIZATION

START DATE

END DATE

CONSTRUCTION ACTIVITY SCHEDULE

1 2

JULY, 2021 (PROJECTED NTP)

AUG., 2022 (PROJECTED)

3 4 5 6 7 8 9 10 11 12

SEDIMENT STORAGE ON SITE IS MANAGED THROUGH THE USE OF SILT FENCE. SILT FENCE

HAS BEEN UTILIZED IN AREAS WHERE A SEDIMENT TRAP WAS NOT FEASIBLE AND COULD

DRAIN OFFSITE. SEE CALCULATIONS FOR REQUIRED AND PROVIDED CUBIC YARDS OF

SEDIMENT STORAGE ON PLAN SHEETS AND DETAIL SHEETS CE502.

CE001

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CERTIFICATION AND SIGNATURE OF THE PERMITTEE IN ACCORDANCE WITH PART IV.G.2.C

OF THE PERMIT.

I CERTIFY UNDER PENALTY OF LAW THAT THIS REPORT AND ALL ATTACHMENTS WERE

PREPARED UNDER MY DIRECTION OR SUPERVISION IN ACCORDANCE WITH A SYSTEM

DESIGNED TO ASSURE THAT CERTIFIED PERSONNEL PROPERLY GATHER AND EVALUATE

THE INFORMATION SUBMITTED. BASED ON MY INQUIRY OF THE PERSON OR PERSONS

WHO MANAGE THE SYSTEM, OR THOSE PERSONS DIRECTLY RESPONSIBLE FOR

GATHERING THE INFORMATION, THE INFORMATION SUBMITTED IS, TO THE BEST OF MY

KNOWLEDGE AND BELIEF, TRUE, ACCURATE, AND COMPLETE. I AM AWARE THAT THERE

ARE SIGNIFICANT PENALTIES FOR SUBMITTING FALSE INFORMATION, INCLUDING THE

POSSIBILITY OF FINE AND IMPRISONMENT FOR KNOWING VIOLATIONS."

SIGNATURE DATE

CERTIFICATION AND SIGNATURE OF THE DESIGN PROFESSIONAL IN ACCORDANCE WITH

PART IV OF THE PERMIT.

I CERTIFY THAT THE PERMITTEE'S EROSION, SEDIMENTATION AND POLLUTION CONTROL

PLAN PROVIDES FOR AN APPROPRIATE AND COMPREHENSIVE SYSTEM OF BEST

MANAGEMENT PRACTICES REQUIRED BY THE GEORGIA WATER QUALITY CONTROL ACT

AND THE DOCUMENT "MANUAL FOR EROSION AND SEDIMENT CONTROL IN GEORGIA"

(MANUAL) PUBLISHED BY THE GEORGIA SOIL AND WATER CONSERVATION COMMISSION AS

OF JANUARY 1 OF THE YEAR IN WHICH THE LAND-DISTURBING ACTIVITY WAS PERMITTED,

PROVIDES FOR THE SAMPLING OF THE RECEIVING WATER(S) OR THE SAMPLING OF THE

STORM WATER OUTFALLS AND THAT THE DESIGNED SYSTEM OF BEST MANAGEMENT

PRACTICES AND SAMPLING METHODS IS EXPECTED TO MEET THE REQUIREMENTS

CONTAINED IN THE GENERAL NPDES PERMIT NO. GAR 100001.

I CERTIFY UNDER PENALTY OF LAW THAT THIS PLAN WAS PREPARED AFTER A SITE VISIT

TO THE LOCATIONS DESCRIBED HEREIN BY MYSELF OR MY AUTHORIZED AGENT, UNDER

MY SUPERVISION.

SIGNATURE DATE

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